1. Time management

Effective time management is one of the most highly valued skills by employers. While there is no one right way, it's important to find a system that works for you and stick to it, Alina Grzegorzewska explains.

"The hardest thing to learn for me was how to plan," she writes. "Not to execute what I have planned, but to make so epic a to-do list and to schedule it so thoroughly that I'm really capable of completing all the tasks on the scheduled date."

2. Empathy

"You can be the most disciplined, brilliant, and even wealthy individual in the world, but if you don't care for or empathize with other people, then you are basically nothing but a sociopath," writes Kamia Taylor.

Empathy, as business owner Jane Wurdwand explains, is a fundamental human ability that has too readily been forsworn by modern business.

"Empathy — the ability to feel what others feel — is what makes good sales and service people truly great. Empathy as in team spirit — esprit d'corps — motivates people to try harder. Empathy drives employees to push beyond their own apathy, to go bigger, because they feel something bigger than just a paycheck," she writes.

3. Mastering your sleep

There are so many prescribed sleep hacks out there it's often hard to keep track. But regardless of what you choose, establishing a ritual can help ensure you have restful nights.

Numerous studies show that being consistent with your sleep schedule makes it easier to fall asleep and wake up, and it helps promote better sleep in general.

4. Positive self-talk

"Ultimately it doesn't matter what others think of you," writes Shobhit Singhal, "but what you think of yourself certainly does, and it takes time to build that level of confidence and ability to believe in yourself when nobody else does."

5. Consistency

Whether you're trying a new exercise routine, studying for the LSATs, or working on an important project, Khaleel Syed writes that consistency is vital to maintaining any kind of success.

People often stop working hard when they reach the top, he explains, but to maintain that top position, they have to work harder and be more consistent in their work.

6. Asking for help

"I once was told in a job interview, 'You can't have this job if you can't ask for help when you need it,'" Louise Christy writes. "Naturally, I said I could. Later, I found out that the previous person with that job had screwed up big-time because he was in over his head but couldn't admit it and didn't ask for help."

She explains that knowing when you need help and then asking for it is surprisingly difficult to learn and do because no one wants to be perceived as weak or incompetent.

7. Knowing when to shut up — and actually doing it

"You can't go around whining about every other thing that seems not-so-right to you in this world," writes Roshna Nazir. "Sometimes you just need to shut up."

There are many instances when keeping to yourself is the best course. "When we are angry, upset, agitated, or vexed," writes Anwesha Jana, "we blurt out anything and everything that comes to our mind." And later, you tend to regret it.

Keeping your mouth shut when you're agitated is one of the most valuable skills to learn, and of course, one of the most difficult.

9. Minding your business

Sticking your nose into other people's work isn't helpful and wastes time and resources, she says. "You have no right to put forth your two or four cents, even if you are the last righteous person standing."

10. Mastering your thoughts

To do what you want to do and accomplish what you want to accomplish, you need to consciously direct your thinking, writes Mark Givert.

"The challenge is that we are the product of our past experience and all of our thinking is the result of this," he says. "However, the past does not equal the future."